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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
Nice!
Best kata ever
Tell me, how in the world 269097409565171400 has the same digits as 269097409565171420?
"If v1 >= v2 then return nil, nothing, null or None." - I don't understand what I have to return in the case of Java. Can someone explain me?